After receiving a distress signal from the mining colony on AF-235-B, a rogue planet also known as Nyx, a sole survivor is brought back to the ship. While the second rescue party is dispatched on the search for the hundred and fifty-seven colonists, which seem to have vanished into nowhere, the atmosphere aboard Syracusae gets more tense with every passing moment as crew members start to go missing. Rebecca Porter, a medical officer, tries to solve the mysterious disappearances and is forced to face the horrors that are now lurking aboard the spaceship.